Piston water-meter



4 Sheets-Sheet 1.

(No Model.)

J. DOOLING. PISTON WATBRMBTER.

Patented Dec. 6, 1887.

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(No Model.)

J. DOOLING;

PISTON WATER METER.

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(No Model.\ 4 Sheets-Sheet 4. J. DOOLING.

PISTON WATER. METER.

No. 374,241. PatentedDeo. 6, 1887.

W/ 7'/\/E55E5.' \/E/\/ TU/T Wm awed M d/ UNITED STATES PATENT OFFICE.

JAMES DOOLING, OF BOSTON, MASSACHUSETTS.

PISSSTON WATER-METER.

I SPECIFICATION forming part of Letters Patent No. 374,241, datedDecember 6, 1887.

' Application filed July 7,1887. Serial No. 248,611. (No model.)

To aZZ whom, it may concern.-

Be it known that I, J AMES DOOLING, of Boston, in the county of Suffolkand State of Massachusetts, have invented certain new and usefulImprovements in \Vater Meters, of which the following, taken inconnection with italic accompanying drawings, is a specifica-Myinvention relates to fluid-meters, and to that particular class ofsuch meters which are usually termed pistorrmeters, and it consists incertain novel features of construction, arrangement, and combination ofparts,which will be readily understood by reference to the descriptionof the drawings, and to the claims to be hereinafter given.

Figure 1 of the drawings is a plan of a meter embodying my invention,with the registering mechanism and its casing removed. Fig. 2 is an endelevation. Fig. 3 is a vertical transverse section on line 1 l onFig. 1. Fig. 4 is a vertical longitudinal section on line 2 2 on Fig. 1,with the registering mechanism and its casing in position. Fig. 5 is ahorizontal section on line 3 3 on Fig. 2. Fig. 6 is a side elevation ofthe same with the cover of the inlet-passages removed. Fig. 7 is avertical transverse section on line at t on Figs. 1,

4, and 6. Fig. 8 is a partial vertical transverse section on line 5 5 onFigs. land 2. Fig. 9 is a longitudinal section on line 6 6 on Fig. 3,looking upward.

In the drawings, A is the main casting, in which are formed themeasuring-cylinder A and the valve-cylinder A the axes of which areparallel to each other, and B B are the cylinder-heads secured to theends of the main casting by the bolts a a, as shown.

C is the working-piston, D the main piston- Valve, and E and E theauxiliary valves, which control the action of the main valve D, as willbe hereinafter described. 7

In each end of the cylinder A is fitted a bushing, B, the inner ends ofwhich serve as stops to limit the movement of the main piston-valve D,and the outer ends of which are closed bythe heads 13*, each providedwith an inwardly-projecting hub, 12, in which is formed a bearing forthe passage of the stem b of the ring-valve E or E, which is fitted toand reciprocates in the bushing B, as shown in Figs. 4c and 5.

The stems b of the valves E and E are se cured at their outer ends tothe bars F, each provided with an inwardly-projecting arm, 0, and firmlysecured to the ends of the rods 0 c, fitted to bearings in the maincasting A, one above and the other below the valve-cylinder, thedistance between the two bars F being in excess of the length of saidmain casting a distance equal to the desired movement of the auxiliaryring-valves E and E, all as shown in Fig. 4.

The central part of the upper portion of the main casting is enlarged orexpanded upon the opposite sides of the valve-cylinder A to formchambers G and G, from the former of which the ports (I, d, d, and dopen into the valvecylinder A and the passages e and e extend downwardto the under side of the workingcylinder A, and, respectively, to theright and left hand ends of said cylinder, as shown in Figs. 3 and at,and from the latter of said chambers the ports f and f open into thevalve cylinder A'", as shown in Figs. 3 and 5.

The cylinder-heads B are each provided with a recess, 9, through whichthe fluid flowing through the passages e and e enters the opposite endsof the cylinder A. B are also provided with the rectangular recesses hh, in which the bars F are inolosed and reciprocate.

H is a cylindrical passage extending longitudinally through the maincasting A between the cylinders A and A, but havingits ends closed bythe screw-plugs h h, and com-' municating by the passagez' with thefluidsupply pipe I, and by the ports j and j with the valve-cylinder A,at the right and left hand, respectively, of the main valve D, thebushings B being provided with corresponding ports, one of which isshown in dotted lines at j and the other in full lines at j in Fig. 5.

H and H are two shorter cylindrical passages extending inward fromopposite ends of the casting A parallel to the passage H, and havingtheir outer ends closed by screw-plugs h If, and communicating at theirinner ends through the ports i and 6, respectively, with The heads Bchamber G, and through the ports Z and Z with the valve-cylinder A atthe right and left hand, respectively, of the main valve D, the bushingsB being provided with coinciding ports, one of which is shown in fulllines at Z and the other in dotted lines at'Z in Figs. 4 and 5.

The main valve D has formed in its periphery two circumferentialgrooves, 42 a, one near each end thereof, said grooves having a widthcorresponding to the widths of the ports d, d, d (i f, or f, and alsowith a third circumferential groove, of, of a width equal to theaggregate width of two of said ports and the width of the bar of metalbetween them, as shown in Fig. 5.

I is the inlet-nozzle, to which the supplypipe is coupled and throughwhich the fluid enters the meter, and (Z is the port through which itfirst enters the valve'cylindcr within the groove a.

J is the discharge-nozzle, to which may be coupled a pipe leading to theplace where the fluid is to be used.

The upper rod, 0, has set therein at, or near the middle of its length,the pin 0,which projects upward therefrom and engages with the forkedend of the lever 19, mounted loosely upon the stud 1), set, in thecasting A, said stud also having mounted thereon the ratchetwheel L,with the teeth of which the pawl q, pivoted to an arm of said lever p,engages in such a manner that when the rod 0 is moved in one directionthe ratchet-wheel will be moved about its axis in the directionindicated by the arrow on Fig. 1, and when the rod is moved in theopposite direction the pawl q will be moved back to engage with anothertooth,said wheel being prevented from turning by the stop-pawl r in awell'known manner.

The hub of the ratchet-wheel L has formed on its upper end one half, 0',of a coupling, which engages with a corresponding halfcoupling, rsecured to the lower end of the driving-shaft of the registeringmechanism inclosed in the cylindrical casing M, as shown in Fig. 4.

The operation of my invention is asfollows: The several partsbeingin theposition shown in the drawings, if the faucet be opened to draw thefluid, the fluid will flow into the meter through nozzle I and port d*,then, through port cZand passage e,into the cylinder A at the right ofthe working-piston O, as shown in Fig. 4, and move said piston towardthe left-hand end of Fig. 4, the fluid in front of said piston flowingthrough passage 6, port d groove n in the main valve, and port f intothe chamber G, and thence through the nozzle J and the pipe connectedtherewith to the faucet. (Not shown.) As the piston G approaches theleft-hand end of the cylinder A, it comes in contact with the projectingarm 0 of the bar F at the left end of Fig-4 and moves said bar, the rods0 c, the bar F at the right of Fig. 4, and the auxiliary valves E and Etoward the left, so as to simultaneously cover the inductioirport j andthe eductionport Z, and by a further movement after said ports areclosed to simultaneously uncover the eduction-port Z and theinduction-port j, thus allowing the pressure of the inlet-fluid,whichflows through passagesiand II and portj to the interior of thevalve-cylinder, to be exerted upon the right-hand end of the main valveD and move it toward the left of Fig. 4, and the fluid in saidvalve-cylinder at the left of said main valve to be forced through theport Z into the passage H and thence through the passage Z into thechamber G, and thence through the nozzle J to the faucet. When the valveD has reached the limit of its movement toward the left, the ports d, d,and f are closed, and the ports (2, (Z and fare uncovered, and thefluid, entering through nozzle I, flows through ports cZ and (Z andpassage 6 into the cylinder A at the left of the piston O and moves ittoward the right-hand end of Fig. 4. By the movement of the piston C tothe left the arm 0 of the bar F, at the right of Fig. 4, is projectedinto the cylinder A, and as the piston 0 again approaches the end of itsmovement toward the right it comes in contact with said arm a, and as itcontinues its movement the bars F F, rods 0 c, and valves E and E aremoved toward the right, thereby simultaneously covering theinduction-port j and the eductionport Z, and by a further movementthereof simultaneously uncovering the induction-port j and theeduction-port Z, thus allowing the pressure of'the inlet-fluid,whichflows through the passages Z and II and the port j to the interior ofthe cylinder A to be exerted upon theleft-hand end of the main valve Dand move it toward the right, thereby forcing the fluid at the right ofsaid valve through the port Z, the passage H at the right-hand end ofthe machine,through the portfinto the chamber G, and thence through thenozzleJ to the faucet.

The upper rod 0 passes, at each end of the main casting, throughastuffing-box, s, to prevent leakage of the fluid into theregister-chamber, and the lower rod 0 may be similarly supplied, ifdesired.

The workingpiston C may be provided with a series of circumferentialgrooves (not shown) 'to serve as a means of packing said piston by beingfilled with the fluid being measured in a well-known manner.

\Vhat I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a fluid-meter, the combination of a measuring-cylinder, a freepiston fitted to said cylinder and movable in either direction thereinby the pressure of the fluid admitted to said cylinder, a valve-chamberconnected with the inlet and discharge nozzles and with themeasuring-cylinder by suitable ports and assa es a free valveconstructed and arranged to be alternately moved in opposite directionsin said chamber by the pressure of the fluid thereon, and two auxiliaryvalves constructed and arrangedto be moved by said piston and to controlthe flow of the fluid into and from said valvechamber at opposite endsof said free valve, thereby causing said valve to be moved alternatelyin opposite directions, and thus change the direction of the flow of 5the fluid in the measuring-cylinder.

2. The combination of the cylinder A, the free piston O, thevalve-chamber A, the ports d, d,'d, d 11, f, f,j,j, Z, and Z, thechambers G G, the passages e, e, H, and H, the bars F 10 F, providedwith the arms a c, the rods 0 c, the auxiliary valves E and E, connectedto and movable with the bars F F, and the free valve D, provided withthe circumferential grooves 91, n, and n, all arranged and adapted v r 5to operate substantially as described.

3. The combination of the mcasuringcylinder, its piston, the valvecylinder the free piston-valve, the auxiliary valves, the bars F F, therods 0 0, the pin 0, and the registering mechanism, all constructed,arranged, and 20 adapted to operate substantially as described.

In testimony whereof I have signed my, name to this specification, inthe presence of two subscribing witnesses, on this 2d day of July, A. D.1887.

JAMES DOOLING.

Vitnesses:

N. O. LOMBARD, WALTER E. LOMBARD.

